[go: up one dir, main page]

TWI418420B - 用於薄金屬條帶之連續生產之程序與設備 - Google Patents

用於薄金屬條帶之連續生產之程序與設備 Download PDF

Info

Publication number
TWI418420B
TWI418420B TW094132752A TW94132752A TWI418420B TW I418420 B TWI418420 B TW I418420B TW 094132752 A TW094132752 A TW 094132752A TW 94132752 A TW94132752 A TW 94132752A TW I418420 B TWI418420 B TW I418420B
Authority
TW
Taiwan
Prior art keywords
casting
strip
roll
metal strip
rolling
Prior art date
Application number
TW094132752A
Other languages
English (en)
Chinese (zh)
Other versions
TW200611761A (en
Inventor
Andreas Flick
Andreas Schweighofer
Markus Brummayer
Gerald Hohenbichler
Gerald Eckerstorfer
Original Assignee
Siemens Vai Metals Tech Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Vai Metals Tech Gmbh filed Critical Siemens Vai Metals Tech Gmbh
Publication of TW200611761A publication Critical patent/TW200611761A/zh
Application granted granted Critical
Publication of TWI418420B publication Critical patent/TWI418420B/zh

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/20Temperature
    • B21B2261/21Temperature profile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2263/00Shape of product
    • B21B2263/02Profile, e.g. of plate, hot strip, sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2263/00Shape of product
    • B21B2263/04Flatness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B38/00Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4998Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988Metal casting
    • Y10T29/49991Combined with rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
TW094132752A 2004-10-13 2005-09-22 用於薄金屬條帶之連續生產之程序與設備 TWI418420B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0170804A AT501314B1 (de) 2004-10-13 2004-10-13 Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes

Publications (2)

Publication Number Publication Date
TW200611761A TW200611761A (en) 2006-04-16
TWI418420B true TWI418420B (zh) 2013-12-11

Family

ID=35709083

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094132752A TWI418420B (zh) 2004-10-13 2005-09-22 用於薄金屬條帶之連續生產之程序與設備

Country Status (15)

Country Link
US (1) US7963136B2 (fr)
EP (1) EP1799368B1 (fr)
JP (1) JP5096156B2 (fr)
KR (1) KR101282163B1 (fr)
CN (1) CN101039762B (fr)
AT (1) AT501314B1 (fr)
AU (1) AU2005297538B8 (fr)
BR (1) BRPI0516088B1 (fr)
CA (1) CA2583295C (fr)
ES (1) ES2666163T3 (fr)
MX (1) MX2007004473A (fr)
RU (1) RU2381846C2 (fr)
TW (1) TWI418420B (fr)
WO (1) WO2006042606A1 (fr)
ZA (1) ZA200703672B (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055530A1 (de) 2005-11-22 2007-05-24 Sms Demag Ag Verfahren und Vorrichtung zum Anstellen von mindestens einem Rollensegment einer Strangführungseinrichtung an einen Strang
US7849722B2 (en) * 2006-03-08 2010-12-14 Nucor Corporation Method and plant for integrated monitoring and control of strip flatness and strip profile
US8205474B2 (en) * 2006-03-08 2012-06-26 Nucor Corporation Method and plant for integrated monitoring and control of strip flatness and strip profile
JP2008213014A (ja) * 2007-03-07 2008-09-18 Ihi Corp ストリップ形状厚さ制御方法
DE102007053523A1 (de) 2007-05-30 2008-12-04 Sms Demag Ag Vorrichtung zur Beeinflussung der Temperaturverteilung über der Breite
DE102008010062A1 (de) * 2007-06-22 2008-12-24 Sms Demag Ag Verfahren zum Warmwalzen und zur Wärmebehandlung eines Bandes aus Stahl
DE102008015828A1 (de) * 2007-09-26 2009-04-02 Sms Demag Ag Walzvorrichtung und Verfahren für deren Betrieb
US20090236068A1 (en) * 2008-03-19 2009-09-24 Nucor Corporation Strip casting apparatus for rapid set and change of casting rolls
RU2491149C2 (ru) * 2008-03-19 2013-08-27 Ньюкор Корпорейшн Устройство для литья полосы с позиционированием литейных валков
US20090288798A1 (en) * 2008-05-23 2009-11-26 Nucor Corporation Method and apparatus for controlling temperature of thin cast strip
DE102008050393A1 (de) * 2008-10-02 2010-04-08 Sms Siemag Aktiengesellschaft Anordnung und Verfahren zur Detektierung eines Betriebszustandes einer Strangführung
GB2466458B (en) * 2008-12-19 2011-02-16 Siemens Vai Metals Tech Ltd Rolling mill temperature control
GB2468713B (en) * 2009-03-20 2011-02-16 Siemens Vai Metals Tech Ltd Edge flatness monitoring
RU2465081C1 (ru) * 2011-06-24 2012-10-27 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") Способ производства листовой холоднокатаной продукции из алюминия и его сплавов
RU2466808C1 (ru) * 2011-06-24 2012-11-20 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") Литейно-прокатный агрегат для производства листовой холоднокатаной продукции из алюминия и его сплавов
RU2466806C1 (ru) * 2011-06-24 2012-11-20 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") Способ производства листовой горячекатаной продукции из алюминия и его сплавов
RU2466807C1 (ru) * 2011-06-24 2012-11-20 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") Литейно-прокатный агрегат для производства листовой горячекатаной продукции из алюминия и его сплавов
GB2504269B (en) * 2012-07-23 2014-09-03 Siemens Plc Method of rolling metal plate
BR112015018427B1 (pt) 2013-03-11 2023-02-07 Novelis Inc Sistema e método para melhorar planicidade em metal laminado
BR112017014443B1 (pt) * 2015-01-15 2022-08-30 Nippon Steel Corporation Chapa de lingotamento contínuo e método e aparelho de fabricação da mesma e método e aparelho de fabricação de uma placa de aço espessa
DE102015223600A1 (de) 2015-09-03 2017-03-09 Sms Group Gmbh Verfahren zum Herstellen eines metallischen Bandes durch Endloswalzen
EP3138639B1 (fr) 2015-09-03 2021-03-24 SMS group GmbH Procede de production d'une bande metallique par laminage en continu
RU2607855C1 (ru) * 2015-11-16 2017-01-20 Анатолий Аркадьевич Злобин Способ получения металлической полосы в литейно-прокатном агрегате бесслитковой прокатки (варианты) и устройство для его осуществления
KR102215895B1 (ko) 2016-03-08 2021-02-17 노벨리스 인크. 프로세스 파라미터들의 직접 측정으로 압연하는 동안 금속 스트립 프로파일을 제어하기 위한 방법 및 장치
US10618107B2 (en) 2016-04-14 2020-04-14 GM Global Technology Operations LLC Variable thickness continuous casting for tailor rolling
KR102230316B1 (ko) * 2016-09-23 2021-03-19 도시바 미쓰비시덴키 산교시스템 가부시키가이샤 에지 히터 제어 장치
JP6828596B2 (ja) * 2016-10-04 2021-02-10 日本製鉄株式会社 連続鋳造設備及び板クラウン制御方法
EP3318342A1 (fr) * 2016-11-07 2018-05-09 Primetals Technologies Austria GmbH Procédé de fonctionnement d'un ensemble de coulée-laminage
CN107755652B (zh) * 2017-09-01 2019-09-10 燕山大学 一种非晶合金双带式连铸机及其连续铸造方法
BR112020005525B1 (pt) 2017-09-22 2022-08-09 Nucor Corporation Controle de aprendizagem iterativo para distúrbios periódicos em fundição de tira de rolo duplo com atraso de medição
AT520084B1 (de) * 2017-10-03 2019-01-15 Primetals Technologies Austria GmbH Verfahren zum Betrieb einer Gieß-Walz-Verbundanlage und Gieß-Walz-Verbundanlage
MX2020011905A (es) * 2018-05-09 2021-03-25 Nucor Corp Metodo para alterar perfil de rodillo de fundicion con la alteracion de temperatura localizada.
CN109877166A (zh) * 2018-06-08 2019-06-14 江苏沙钢集团有限公司 一种适用于超薄铸轧带钢凸度在线控制的方法
JP7279083B2 (ja) * 2018-06-13 2023-05-22 ノベリス・インコーポレイテッド 圧延後に金属ストリップを焼き入れするためのシステム及び方法
TW202019582A (zh) * 2018-10-22 2020-06-01 日商日本製鐵股份有限公司 鑄片的製造方法及控制裝置
US11819895B2 (en) * 2018-10-31 2023-11-21 Nippon Steel Corporation Control system, control method, control device, and program
EP3943210A1 (fr) * 2020-07-23 2022-01-26 Primetals Technologies Austria GmbH Installation composite de coulée et de laminage destinée à la fabrication d'une bande finie laminée à chaud à partir d'un acier fondu
WO2022130582A1 (fr) * 2020-12-17 2022-06-23 Primetals Technologies Japan株式会社 Équipement de laminage
EP4122612A1 (fr) * 2021-07-23 2023-01-25 Primetals Technologies Japan, Ltd. Cage de laminoir à six cylindres et train de laminoir de finition pour le laminage à chaud de bande intermédiaire en bande mince
CN113758994A (zh) * 2021-09-29 2021-12-07 华中科技大学 一种基于磁光效应的动生涡流检测方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108379A2 (fr) * 1982-11-03 1984-05-16 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Procédé et commande pour régler la distribution de l'effort de traction pendant le laminage à froid de bandes
US6044895A (en) * 1993-12-21 2000-04-04 Siemens Aktiengesellschaft Continuous casting and rolling system including control system

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62142004A (ja) * 1985-12-16 1987-06-25 Kawasaki Steel Corp 板厚偏差の少ない急冷薄帯の製造方法およびその設備
DE3721746A1 (de) * 1987-07-01 1989-01-19 Schloemann Siemag Ag Verfahren und vorrichtung zur messung der planheit von walzband in warmbreitbandstrassen
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
JPH06234048A (ja) * 1993-02-10 1994-08-23 Leotec:Kk オーステナイト系ステンレス薄鋳片の製造方法
DE4340857A1 (de) * 1993-12-01 1995-06-08 Ubib Unternehmensberatungs Gmb Abfallentsorgungsanlage
RU2121408C1 (ru) * 1993-12-01 1998-11-10 Сименс АГ Установка для бесслитковой прокатки стальных лент
IT1267916B1 (it) 1994-03-31 1997-02-18 Danieli Off Mecc Procedimento per la produzione di nastro partendo da bramme sottili e relativo impianto
JPH091209A (ja) * 1995-06-16 1997-01-07 Nippon Steel Corp ステンレスストリップの連続鋳造熱間圧延設備および表面品質の優れたステンレスストリップの製造方法
DE19758466B4 (de) * 1997-03-11 2007-10-04 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Planheits-Regelungssystem für Metallband
DE19737735A1 (de) * 1997-08-29 1999-03-04 Schloemann Siemag Ag Vorrichtung und Verfahren zur auslaufseitigen Kühlung der Arbeitswalzen eines Walzgerüstes
DE19933610A1 (de) * 1999-07-17 2001-01-25 Bwg Bergwerk Walzwerk Verfahren zum Planieren von Metallbändern
DE10036564C2 (de) * 1999-08-03 2001-06-21 Achenbach Buschhuetten Gmbh Mehrwalzengerüst
US6158260A (en) * 1999-09-15 2000-12-12 Danieli Technology, Inc. Universal roll crossing system
AUPQ546900A0 (en) * 2000-02-07 2000-03-02 Bhp Steel (Jla) Pty Limited Rolling strip material
JP3518594B2 (ja) * 2000-04-21 2004-04-12 日立電線株式会社 金属箔の製造方法
AT409351B (de) 2000-06-05 2002-07-25 Voest Alpine Ind Anlagen Verfahren und anlage zur herstellung eines metallbandes
FR2812082B1 (fr) 2000-07-20 2002-11-29 Vai Clecim Rouleau de mesure de planeite
FR2815705B1 (fr) 2000-10-20 2003-04-18 Val Clecim Procede et dispositif de detection de planeite
DE10116273A1 (de) * 2001-03-31 2002-10-10 Sms Demag Ag Verfahren zum Betreiben einer Walzstraße sowie eine entsprechend ausgebildete Walzstraße
FR2823300B1 (fr) 2001-04-10 2003-09-05 Vai Clecim Procede de detection de defauts de planeite
JP4473466B2 (ja) * 2001-04-16 2010-06-02 新日本製鐵株式会社 薄帯鋳片連続鋳造方法及び装置
JP2003071506A (ja) * 2001-08-31 2003-03-11 Kawasaki Steel Corp 熱間圧延設備列及び熱間圧延方法
AT410767B (de) 2001-10-24 2003-07-25 Voest Alpine Ind Anlagen Verfahren und vorrichtung zur kontinuierlichen herstellung eines gewalzten metallbandes aus einermetallschmelze
JP2004050220A (ja) * 2002-07-18 2004-02-19 Ishikawajima Harima Heavy Ind Co Ltd 帯板製造設備
WO2005015233A1 (fr) 2003-08-11 2005-02-17 Roche Diagnostics Gmbh Utilisation de la proteine spee (spermidine synthase) comme marqueur du cancer colorectal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108379A2 (fr) * 1982-11-03 1984-05-16 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Procédé et commande pour régler la distribution de l'effort de traction pendant le laminage à froid de bandes
US6044895A (en) * 1993-12-21 2000-04-04 Siemens Aktiengesellschaft Continuous casting and rolling system including control system

Also Published As

Publication number Publication date
TW200611761A (en) 2006-04-16
JP2008515647A (ja) 2008-05-15
WO2006042606A1 (fr) 2006-04-27
CN101039762A (zh) 2007-09-19
EP1799368A1 (fr) 2007-06-27
RU2381846C2 (ru) 2010-02-20
EP1799368B1 (fr) 2018-01-17
AT501314B1 (de) 2012-03-15
BRPI0516088B1 (pt) 2019-01-22
ES2666163T3 (es) 2018-05-03
CA2583295C (fr) 2013-05-28
AU2005297538B2 (en) 2010-07-01
US20090049882A1 (en) 2009-02-26
KR20070054261A (ko) 2007-05-28
BRPI0516088A (pt) 2008-08-19
WO2006042606A8 (fr) 2006-06-29
US7963136B2 (en) 2011-06-21
CN101039762B (zh) 2012-11-07
AU2005297538A1 (en) 2006-04-27
AU2005297538B8 (en) 2010-07-15
JP5096156B2 (ja) 2012-12-12
KR101282163B1 (ko) 2013-07-04
MX2007004473A (es) 2007-07-11
RU2007117720A (ru) 2008-11-20
CA2583295A1 (fr) 2006-04-27
AT501314A1 (de) 2006-08-15
ZA200703672B (en) 2009-09-30

Similar Documents

Publication Publication Date Title
TWI418420B (zh) 用於薄金屬條帶之連續生產之程序與設備
JP2008515647A5 (fr)
US8490447B2 (en) Method for adjusting a state of a rolling stock, particularly a near-net strip
JP6828596B2 (ja) 連続鋳造設備及び板クラウン制御方法
US8893768B2 (en) Method of continuous casting thin steel strip
JP6569494B2 (ja) 薄肉鋳片製造設備、及びピンチロールのレベリング方法
TWI388385B (zh) 用於鋁合金板件之連續鑄造與輥軋線的速率同步系統、以及使用該系統的用於鋁合金連續鑄造與輥軋板件的製造設備及製造方法
JP4935383B2 (ja) 鋼の連続鋳造方法
JP2010502450A (ja) メタルストランドを連続鋳造するための方法
JP5775378B2 (ja) 条鋼の圧延方法
JP2009538227A (ja) 連続鋳造によりメタルストリップを製造するための方法及び装置
JP6631393B2 (ja) 双ドラム式連続鋳造装置、及び、金属薄帯の製造方法
JP6848596B2 (ja) 双ドラム式連続鋳造設備における圧延設備及び圧延方法
JP3135282B2 (ja) 薄板連鋳法
TW202023709A (zh) 鑄片的鑄造方法
US20130145595A1 (en) Twin roll continuous caster
JP3068839B2 (ja) 双ロール式連続鋳造における鋳片板厚制御方法
JP2017192968A (ja) 鋳造ストリップ製造設備、及び、鋳造ストリップの製造方法
JP4922945B2 (ja) 金属をストリップ鋳造するための方法および装置
JPH01218744A (ja) ツインドラム式連続鋳造機
JP3591478B2 (ja) 直送圧延による熱延鋼板の製造方法
JP2017192969A (ja) 鋳造ストリップ製造設備、及び、鋳造ストリップの製造方法
CN119794287A (zh) 宽幅立式铸轧生产系统以及板形控制工艺
JPH09220601A (ja) 熱間圧延方法
JPH10170364A (ja) 帯状材の張力検出装置及びそれを用いた設備

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees